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Other Clouds
- Arcus
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- Cap / banner clouds
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- Cataractagenitus
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- Duplicatus
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- Morning Glory Cloud
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- Mediocris
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- 'Supercilium' (not official classification)
- Translucidus
- Tuba / Twister
- Uncinus
- Undulatus
- Velum
- Vertebratus
- Virga
- Volutus (Roll cloud)
Optical Effects
- 22° Halo
- 46° Halo
- Circumhorizon Arc
- Circumscribed halo
- Circumzenithal Arc
- Cloudbow / Fogbow
- Corona
- Crepuscular rays & shadows
- Diffuse arcs
- Green flash
- Glory
- Halos
- Helic arc
- Infralateral arc
- Iridescence
- Lower Sun Pillar
- Lower Tangent Arc
- Moonbow
- Moondogs
- Parhelic circle
- Parry antisolar arcs
- Parry arc
- Parry infralateral arc
- Parry supralateral arc
- Rainbow
- Sub parhelion
- Sub-sun
- Suncave parry arc
- Sun dog (Parhelion)
- Sun pillar
- Supernumerary bows
- Subparhelic circle
- Supralateral arc
- Upper tangent arc
- Wegener arc
Asperitas over Stinson Beach, California, US.
Mammatus (Mamma) spotted over Achim, near Bremen, Germany
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A sleepy face spotted in the clouds over Goodyear, Arizona, US
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Crepuscular rays and signs of virga spotted during sunset over Liverpool Bay, near Gaw Hill, Ormskirk, England
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Pileus spotted over Bestwig, North Rhine-Westphalia, Germany
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Altostratus spotted during sunset over Lisboa, Portugal
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Cumulonimbus spotted at sunset over Osnabrück, Germany
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Primary and secondary rainbows following the passage of a storm near Brighton, Colorado, US
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A mixed sky during the evening near Greenfield, California, US
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Cirrus homogenitus, formed from the remnants of a contrail, spotted over Stockport, England
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Undulatus spotted over Abbots Lagoon, Point Reyes, California, US
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Cumulonimbi spotted throughout the sky over Atagohama, Fukuoka City, Japan
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Stratocumulus over Pike's Peak, spotted by Sree Bhasin near Colorado Springs, Colorado, US
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Signs of virga at sunrise over Madison, Wisconsin, US
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The setting Sun looking like a Golden Snitch in a game of Quidditch, spotted over Rufford, Lancashire, England
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Altocumulus stratiformis spotted over Humboldt Bay, Eureka, California, US
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